It's Whirlpool Warrior! But more expensive and not able to attack or block.

Ah so it is. Though it's uncommon and doesn't shuffle your hand twice. You are right though it should probably cost a few less. Say maybe ?

Well, it's basically actually Windfall or a one-shot Teferi's Puzzle Box. or would be fine, I think; if you really want it to be blue-red.

The question is what are you expecting people to use it for? What set would want this effect? In order to justify the increased effort over a simple Tolarian Winds, you'd need to have some mechanic in the set that provided information about what's in the opponent's hand.

Maybe make it "any number of target players", so you can decide if you want to loot your hand, and you can decide if your opponent has been hoarding good spells and you want to scramble them or is manascrewed/landflooded and you want to leave them as is? I might want that effect, although even then, it may not need to cost more than windfall?

It's exactly Winds of Change, given flash for the bargain-basement price of 5 additional mana in a second color.

I made it since Blue is the color of Draw and Red tends to nearly always discard a card to draw one.

I aim it to be a risky answer to an opponent drawing several cards in a turn or searching for something/s and putting it/them into his or her hand. Or if you really need to change out your hand and as a bonus your opponent has to change theirs out too.

I'm thinking of making it any number of players though per Jack V's suggestion. And changing the cost to .

I can see this in a set where there is plenty of card draw or search into hand effects.

This does nothing to harm people who draw lots of cards unless you add in a damage element. It's unlikely that any set will contain enough effects that search to the hand for you to want to punish them.

Really anything that puts multiple cards in hand whether from the library or the grave yard, even bounced to hand, is a target for this.

I could see a set with heavy bounce or return from graveyard to hand effects that this would fit in with.

EDIT: After thinking about it I'm going to change it to shuffle X cards at random into the library and make this cost .